/Engine/Source/Editor/ContentBrowserData/Public/ContentBrowserDataSource.h
Attempt to begin the process of asynchronously creating a folder at the given virtual path, populating a temporary item that can be finalized or canceled by the user.
True if the pending folder was created, false otherwise.
virtual bool CreateFolder ( const [FName](API\Runtime\Core\UObject\FName) InPath, [FContentBrowserItemDataTemporaryContext](API\Editor\ContentBrowserData\FContentBrowserItemDataTemporary-) & OutPendingItem )